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Number series

This section assesses students' inductive reasoning, quantitative reasoning, and number facility. The test presents a set of numbers, and the student is to select the number that would come next in the series.

    In order to answer a question, the student will need to:
  • Figure out the pattern from the given number series;
  • From the choices, select the one comes next in the series following the same pattern
    Below shows a number of typical patterns and examples
  • Adding a certain number to get the next:
    1.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    0481216
    A) 20B) 19C) 18D) 24E) 23
    [Correct Answer]:A
  • Deducting a certain number to get the next:
    2.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    87654
    A) 4B) 6C) 1D) 3E) 0
    [Correct Answer]:D
  • Adding the previous two numbers to get the next:
    3.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    369152439
    A) 67B) 63C) 60D) 64E) 65
    [Correct Answer]:B
  • Every 3 numbers repeat:
    4.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    357357357
    A) 9B) 5C) 3D) 11E) 7
    [Correct Answer]:C
  • Every 3 numbers repeat with order changes:
    5.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.

    345534453345
    A) 4B) 6C) 7D) 5E) 3
    [Correct Answer]:D
  • Every 4 numbers repeat:
    6.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    1
    12
     
    1
    9
     
    1
    6
     
    1
    3
     
    1
    12
     
    1
    9
     
    1
    6
     
    1
    3
     
    1
    12
     
    1
    9
     
    1
    6
     
    1
    3
     
    1
    12
     
    1
    9
     
    1
    6
     
    A)
    1
    15
     
    B)
    1
    3
     
    C)
    1
    18
     
    D)
    1
    9
     
    E)
    1
    12
     
    [Correct Answer]:B
  • Every 4 numbers as a group:
    7.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    123422343234423
    A) 3B) 2C) 1D) 5E) 4
    [Correct Answer]:E
  • Adding one to both denominator and numerator to get the next fraction:
    8.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.

    3
    4
     
    4
    5
     
    5
    6
     
    6
    7
     
    7
    8
     
    A)
    8
    9
     
    B)
    7
    9
     
    C)
    8
    7
     
    D)
    10
    9
     
    E)
    8
    10
     
    [Correct Answer]:A
  • Each number is square number in sequence:
    9.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.

    149162536
    A) 70B) 42C) 35D) 77E) 49
    [Correct Answer]:E
  • Appending a digit following certain pattern to get the next number:
    10.  Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
    4545455545
    A) 5455B) 554555C) 55545D) 5554E) 55455
    [Correct Answer]:E